@misc{indiciae0c48ebbe681f,
  title = {A new device to estimate abundance of moist-soil plant seeds},
  author = {E.J. Penny and R.M. Kaminski and K. J. Reinecke},
  year = {2006},
  url = {https://pubs.usgs.gov/publication/5224648},
  note = {Source identifier: 5224648}
}